"no video signal" message when connected to PC

Hi,

I'm trying to connect my Philips 8404 TV to my Radeon HD6450 with no success...
Unfortunately, I'm getting "no video signal" message o the TV.
The CCC shows that both my Syncmaster and my TV are detected, but again, the picture is displayed only on my Syncmaster.
I've tried all 4 HDMI connections on the TV but nothing helps.
The TV is connected HDMI to HDMI connection.
Can anybody here help me figure out what the problem is and how to fix it?

I'm trying to connect my Philips 8404 TV to my Radeon HD6450 with no success...
Unfortunately, I'm getting "no video signal" message o the TV.
The CCC shows that both my Syncmaster and my TV are detected, but again, the picture is displayed only on my Syncmaster.
I've tried all 4 HDMI connections on the TV but nothing helps.
The TV is connected HDMI to HDMI connection.
Can anybody here help me figure out what the problem is and how to fix it?

Thanks!

Hi I.H

Could you please confirm what software version that is installed on your TV?
Have you tried any other device connected with HDMI to the TV?If so, what is the restult of this?

Until a few weeks ago, the TV was connected to my PC with another graphic card - Gigabyte 8600GT. The connection was DVI to HDMI (using HDMI-1) and it worked fine. Unfortunately this card died so I had to replace it with a new one.
Than I've tried using Gigabyte NVIDIA GeForce GT630 but nothing worked, and now I'm trying Radeon HD6450 and still - nothing works. With both cards I tried connecting DVI-HDMI and HDMI-HDMI but nothing is working for me.
The TV is detected by the PC only when connected to HDMI-3 or side-HDMI (but still with no signal) and when connected to HDMI-1 or HDMI-2 it is not even detected.

Until a few weeks ago, the TV was connected to my PC with another graphic card - Gigabyte 8600GT. The connection was DVI to HDMI (using HDMI-1) and it worked fine. Unfortunately this card died so I had to replace it with a new one.
Than I've tried using Gigabyte NVIDIA GeForce GT630 but nothing worked, and now I'm trying Radeon HD6450 and still - nothing works. With both cards I tried connecting DVI-HDMI and HDMI-HDMI but nothing is working for me.
The TV is detected by the PC only when connected to HDMI-3 or side-HDMI (but still with no signal) and when connected to HDMI-1 or HDMI-2 it is not even detected.

Thanks!

Hi I.H.

Have you made sure the settings on your graphics is set to send picture out via HDMI/ DVI?

Do you have any other HDMI devices like blu ray player, gaming console etc? If you do, please try this/ these and report back to me the result.

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